| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.hadoop.metrics2.impl; |
| |
| import com.google.common.base.Predicate; |
| import com.google.common.collect.Iterables; |
| import org.apache.hadoop.metrics2.AbstractMetric; |
| import org.apache.hadoop.metrics2.MetricsRecord; |
| import org.apache.hadoop.metrics2.MetricsTag; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| |
| /** |
| * Utility class mainly for tests |
| */ |
| public class MetricsRecords { |
| |
| public static void assertTag(MetricsRecord record, String tagName, |
| String expectedValue) { |
| MetricsTag processIdTag = getFirstTagByName(record, |
| tagName); |
| assertNotNull(processIdTag); |
| assertEquals(expectedValue, processIdTag.value()); |
| } |
| |
| public static void assertMetric(MetricsRecord record, |
| String metricName, |
| Number expectedValue) { |
| AbstractMetric resourceLimitMetric = getFirstMetricByName( |
| record, metricName); |
| assertNotNull(resourceLimitMetric); |
| assertEquals(expectedValue, resourceLimitMetric.value()); |
| } |
| |
| public static Number getMetricValueByName(MetricsRecord record, |
| String metricName) { |
| AbstractMetric resourceLimitMetric = getFirstMetricByName( |
| record, metricName); |
| assertNotNull(resourceLimitMetric); |
| return resourceLimitMetric.value(); |
| } |
| |
| public static void assertMetricNotNull(MetricsRecord record, |
| String metricName) { |
| AbstractMetric resourceLimitMetric = getFirstMetricByName( |
| record, metricName); |
| assertNotNull("Metric " + metricName + " doesn't exist", |
| resourceLimitMetric); |
| } |
| |
| private static MetricsTag getFirstTagByName(MetricsRecord record, String name) { |
| return Iterables.getFirst(Iterables.filter(record.tags(), |
| new MetricsTagPredicate(name)), null); |
| } |
| |
| private static AbstractMetric getFirstMetricByName( |
| MetricsRecord record, String name) { |
| return Iterables.getFirst( |
| Iterables.filter(record.metrics(), new AbstractMetricPredicate(name)), |
| null); |
| } |
| |
| private static class MetricsTagPredicate implements Predicate<MetricsTag> { |
| private String tagName; |
| |
| public MetricsTagPredicate(String tagName) { |
| |
| this.tagName = tagName; |
| } |
| |
| @Override |
| public boolean apply(MetricsTag input) { |
| return input.name().equals(tagName); |
| } |
| } |
| |
| private static class AbstractMetricPredicate |
| implements Predicate<AbstractMetric> { |
| private String metricName; |
| |
| public AbstractMetricPredicate( |
| String metricName) { |
| this.metricName = metricName; |
| } |
| |
| @Override |
| public boolean apply(AbstractMetric input) { |
| return input.name().equals(metricName); |
| } |
| } |
| } |